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This article mainly explains "Ubuntu12.05LTS how to install sun jdk7", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "Ubuntu12.05LTS how to install sun jdk7" bar!

Ubuntu 12.05LTS install sun jdk7

1. Download SUN JDK

Download address: http://vdisk.weibo.com/s/jhKspZIIMR#_loginLayer_1490749350870

I downloaded jdk-7u7-linux-i586.tar.gz to the home/ username directory.

two。 Decompression

Sudo tar-zvxf jdk-7u7-linux-i586.tar.gz

Get jdk1.7.0_07 after decompression

3. Copy the extracted files directory to / usr/lib/jvm

Sudo cp-r ~ / jdk1.7.0-07 / / usr/lib/jvm/jdk1.7.0_07

4. Configure java environment variables

Open the .profile file and add it at the end (.profile is a hidden file under the / home/ username directory that can be viewed by Ctrl+H)

Export JAVA_HOME=/home/gary/jdk1.7.0_07

Export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib

Export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH

After saving, the terminal makes it effective.

Source .profile

4. Test java

Java-version

Untu:~$ java-version

Java version "1.7.080"

Java (TM) SE Runtime Environment (build 1.7.0_80-b15)

Java HotSpot (TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

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